펄프종이기술 (Journal of Korea Technical Association of The Pulp and Paper Industry)

한국펄프종이공학회 (Korea Technical Association of the Pulp and Paper Industry)
권호 표지

고분자전해질의 LbL 흡착 처리에 의해 개질된 중질탄산칼슘의 특성 기초 연구

Preliminary Study on Properties of Layer-by-Layer Assembled GCC with Polyelectrolytes

  • 이제곤 (서울대학교 농업생명과학대학 산림과학부) ;
  • 류재호 (서울대학교 농업생명과학대학 산림과학부) ;
  • 심규정 (서울대학교 농업생명과학대학 산림과학부) ;
  • 안정언 (서울대학교 농업생명과학대학 산림과학부) ;
  • 이학래 (서울대학교 농업생명과학대학 산림과학부) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부)
  • Lee, Je-Gon (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Ryu, Jae-Ho (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Sim, Kyu-Jeong (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Ahn, Jung-Eon (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Lee, Hak-Lae (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University) ;
  • Youn, Hye-Jung (Dept. of Forest Sciences, College of Agriculture and Life Sciences, Seoul National University)
  • 투고 : 2011.09.03
  • 심사 : 2011.09.15
  • 발행 : 2011.09.30
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초록

In this study, ground calcium carbonate (GCC) was modified by Layer-by-Layer (LbL) multilayering with polyelectrolytes. Cationic polyacrylamide (C-PAM) and poly sodium 4-styrene sulfonate (PSS) were used as cationic and anionic polyelectrolytes to modify GCC. The characteristics of the modified GCC were examined in terms of zeta potential and particle size with the addition level of polyelectrolyte and layer number. The GCC could form an assembly of cationic and anionic polyelectrolytes through consecutive adsorption process. The zeta potential of the modified GCC moved toward the cationicity and reached the plateau with the increase of the addition level of C-PAM. With layering of anionic PSS, the GCC had the negative charge. The particle size was dependent on the zeta potential. It was also observed by optical microscope. As the PSS was in the presence of the outermost layer, the GCC showed the better dispersability. It indicated that the surface charge and particle size can be controlled by adjusting the addition level of polyelectrolyte and the layer number.

키워드

참고문헌

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